The Internet Computer requires specific hardware for Internet Identity authentication and security purposes.
Users do not need to have a device with biometrics to use the Internet Identity. There should be an option to use the computer screen unlock passcode, laptop fingerprint scanner, and/or phone screen unlock, and pin code. The screen unlock feature must be active on the device for that option to be available.
FIDO U2F-supporting devices can also be used for Internet Identity. DFINITY does not sell these devices.